Why does Bruno pretend that he has an imaginary friend? 
 Practice
 A 
 He accidentally tells Gretel about Shmuel and fears she will ruin their friendship.
 B 
 Due to the heavy rain, he can't visit Shmuel and is feeling lonely.
 C 
 He regrets not comforting Shmuel, so he creates an imaginary friend to practice talking to.
 D 
 Since Shmuel is angry with Bruno, he creates an imaginary friend to take his place.